Stoichiometry and the Ideal Gas Law

Stoichiometry and the Ideal Gas Law - Stoichiometry and the...

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Stoichiometry and the Ideal Gas Law 10/24/08 Results and Discussion
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Purpose The identity of the nitrite salt #8334 was determined by reacting it with sulfamic acid according to the reaction: MNO 2(aq) + HSO 3(aq) MHSO 4(aq) + H 2 0 (l) + N 2(g) In order to determine the identity of the salt, the molar mass was found by recording the mass of the salt and finding the moles of the salt through its stoichiometric relationship with N 2 . The moles of nitrogen gas produced was found by calculating its volume at a specific temperature and pressure using the Ideal Gas Law: PV= nRT. The volume of the Nitrogen gas collected was measured by collecting displaced water and measuring its mass. Then by dividing by the density of water, the volume of the water displaced was found (D= M/V). Since water vapor was produced with the nitrogen, Dalton’s law of partial pressure was used to calculate the pressure on the nitrogen: P total = P N2 + P H2O . The temperature of 28.4 0 C determined the pressure of the water vapor to be 28.35 mmHg.
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This note was uploaded on 11/06/2010 for the course CHEM 2070 at Cornell.

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Stoichiometry and the Ideal Gas Law - Stoichiometry and the...

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